Web drying device for waxing machines



Oct. 12, 19,37.

R. A. HAYWARD- WEB DRYING DEVICE FOR WAXING MACHINES 3 Sheets-Sheet 1Filed Nov. 15, 1955 INVENTOR fay/2 /Z #0 BY 1% Oct. 12, 1937. A, HAYWARD2,095,471

WEB DRYING DEVICE FOR WAXING MACHINES Filed Nov. 15, 1955 s Sheets-Sheet2 INVENTOR ATTORN EYS Oct. 12, 1937. R. A. HAYWARD WEB DRYING DEVICE FORWAXING MACHINES 3 Sheets-Sheet 3 Filed Nov. 115, 1935 d W? w Q NINVENTOR lFU/ /7 f2 /7 q Patented Oct. l 2, 1937 MAC Parchment, Mich.

"11 Claims.

mamas as, to waxing ent 1,658, 185L datedEebruary '7,"1928."

The main obje'cts iof this invention.aref t First, to proyide animprcvedfwebdryi ng device fpr afw'axi g machine which is especiallywell adapted fpr the waxi'n'g of a paper web trail-- na t h h sp d-l v'2 10 Second, fto provi suction "pipe ass nihly bymeans, of which theefilclency and life [of the apparatus, is improved and prolonged. T i d.pt rovi re i PIQi d su tio pipe. an 15 upright; assembly by means orwhich thefsuc tlon "pipe may be ajdjjlistedfintoj proper relation to tflll lig Web? p Fourt mmovme aweb. drying) device for: a

30 tle .o ia wax n bf" my invention, Fig is a" nichinejenibodyingfifeatiues aryview invention. h h 38 -,3 .5 a enlar d an a y r n vers mohfl Yi fi t ekfi f 1.1 l n .c o din to must 1 3299 111NYE]! mmansvm won J1 HINES" t ffgi piicsat ifidieslsr' is, 1935; seat;No. 49352 v (Cl. 3H8) t p H V niachinesi'of thetype disclosed by thepatent to John "Decker pressed from the an, ,irnproved1snction bar RalphAJHaywai'd, Parchment, Micli -assfgnor toKalamazoo Vegetable ParchmentCornpanypj" After leaving the web tensionlng rolls l, the paper passesthrough awax tank Q; containing melted paraflin 1, the excess parafilnbeing web: by. the, squeezing 3 rolls 8 I A which return thesurpluswaxto the tank,- The 5 v web thereupon passes to thepolishingrolis 8,.

a pull roll l llbeing disposed therebetween, F Upon leaving thesmoothing or polishing rolls, where,

' t a smooth even .finish QIgSI-H'IMQ ls impartedto the wax,\ the webpasses through the cooling, 10 v fluid] I, in thiscase eoldfwatergin the-water I tank l2 at the baseofthedrying tower l3. Th w cold waterhardens. thefwa'x-on the web, but a certainjamount of 'water i s pickedup, bythe waxed webas it travels through the water bath. 16',

The surplus water being removed in the drying tower or stack .13, theweb vpasses.around chill L t I r rolls ahdfisflnallywoundjonthefinishedroll 3. waxing'fmachlne which is simple and economical 1 The drying.toweror stack l3fcomprises a pair of spaced' parane hollow uprights 115havin 20,v

. crosss iction pipes; l6 disposed there b etween, the

uprights through pa sages II in the inner walls 01 the l prlghts. ,Theends of the suction pipes ends' of the pipe op nir'ig, to the interioroi'fthelf l6 are cbnn'e'ctedrto the lfinner walls. pfthe hp 2 rightshyen plates & I8 and cylindrical end mem-j bers or icoup ling memhers I9;Theend lates are mounted onlthe inner walls, ofphthei upri hfi vbyfboltsZll andihave way-like undercutseats fi and h endinen'ihersi lfllinl the b'osses 2? provide means I for adjustingthe ends of the pipertransversely or the'tpri h l5- At t e sam fi me a ub t nr tial l yaimtight connection ,is proyided between the; suction pipes andthel-uprights oi the drying D tower.

The .s nctieri; pipesll preferably": form lfit of stainless rsteel andhavea longitudinalt slot 24,

interniediateftheends thereofin which is remoy-.

.Y ably fittedjfa hardehedsteelsuction harf or' f ace bar iihaving a;rounded wearing face 26 and a. i

"- base T 21?, 7 the. "bar being provided with suction f openings orprromua sqza. A rrangmifthrcugh I ch su ion, pe t i p clam in bolt 50-Ii'. jasa mpi -t e h QL FPQWR in place in the slot, the bolts'beingiar'i an'ged at t substantially rightj angles ille-slot;

is .fiiade relatively ,deep bjetween thef base and e the eof"w r v e mshmi t e pace we i is flattened, reducing the efilciency of the suctionperforations 28 in removing surface water from the web. I have foundthat the proper curvature of the wearing face 26 for highest eiiiciencyis that obtained by a radius of one and threesixteenths inches. Thiscurvature is maintained by loosening the clamping bolts 29 and removingthe suction bars to a metal planer, the bars being replaced after eachplaning. This operation can be repeated several times and I find inpractice should preferably be done about twice each year. Thus, it ispossible to renew the wearing face of the suction bars several timesduring their life. Any of the well known hardened steels now on themarket may be used for the suction bars.

The uprights I! are connected to an exhausting apparatus or suction pump(not shown) through the suction conduit 30 located at the top of thedrying tower it. Thus, a current of air at high speed is caused to enterthe suction perforations 28 in the suction bars during the operation ofthe device, the perforations being preferably arranged in a double rowand in alterhating or zigzag relation, one row being disposed at eachside of the center or crown of the bar so that when the web I passesacross the face 26 the suction perforations are not closed, air beingthus caused to rush across the surface of the traveling web and into thesuction pipes l6, carrying the water with it.

A somewhat similar action takes place in the apparatus of my patentreferred to above. In that machine, however, it was necessary to removethe worn suction pipes from the machine and install entirely new oneswhen the old pipes became worn and inefllcient. In'the present machine,the suction pipes i8 form a permanent part of the machine, it beingnecessary. only to remove and renew the wearing surfaces of the hardenedsteel suction bars whenthe faces of the latter become worn. This is adecided improvement in maintaining theefilciency of the machine and inreducing the cost thereof.

Between the uprights ll, doctors 3| are arranged to remove the surpluswater from opposite sides of the upwardly traveling web directly afterit leaves the water bath, a group of the suction pipes it being disposeddirectly above each of the doctors, these groups being indicated bynumeral 32 and consisting of two suction pipes each. Most of the wateris removed from the web by these suction pipes, but in order to entirelyremove all of the moisture, I cause the web to travel in a zigzag paththrough guide rollers 33 until the web reaches the top of thedryingtower.

Between the rolls 33 and under the traveling web I, I arrange groups 34of suction pipes, preferably three ineach case, for removing themoisture collected in drops on the under surface of.

hundred feet per minute, the wax web is free of moisture on leaving thedrying tower l3;

By adjusting the bolts 23, the ends of the suction pipes l6 may beindividually adjusted to bring the wearing face 26 of the suction barinto proper contact with the moving web of paper. This is a veryimportant feature inasmuch as for maximum efficiency the wearing facesof the suction bars must be in proper contact with the web. If desired,the vacuum pipes It may be readily removed from the uprights IIalthough, as pointed out above, they are intended. to form a permanentpart of the machine.

For best results. I have found that the clamping bolts 29 should bearranged through the pipes in a slightly upwardly and rearwardlyinclined position relative to the web, the axis of each bolt preferablypassing through the axis of the pipe and at an angle of 15 with a planeparallel to the web. In this case, the suction pipes are three andone-half inches in outside diameter.

Referring to Fig. 8 of the drawings, in the 11- lustrated modification,the waxing machine comprises a pair of spaced parallel uprights 31 oiinverted substantially U shape having hollow walls. Between the uprightsare arranged rolls 38 and 39 acting to guide the traveling web Iupwardly between the front of the uprights. A roller 40 coacts with theroller 39 to guide the paperln a downwardly inclined path to the back ofthe uprights where rollers 4| and 42 coact to caulsle the web to traveldownwardly in a zigzag pa Arranged between and at the bottom of thefront of the uprights is a tank 43 containing a chilling fluid,preferably water, which is constantly circulated within the tank bymeansincluding a pump 44 driven by an electric motor 45. The doctors 46return the water collected by them to the pump through a pipe 41. Groups'48 of suction tubes, opposite sides of the traveling web between therollers 31 and II and between the rollers 39 and 4il.- Similar groups 4.of suction pipes are disposed between therollers 40, 4i and 42 under thetraveling web. The vacuum groups 48 and 49 are similar to the groups 34of Figs. 1 to '7, inclusive.

Coacting with the rollers 38 and 42'are posi-' conduit 54 at the bottomof the back of the ma chine. The machine of the modification operates inthe same manner as the machine described above in connection with I'igs.1 to 'I, inclusive, the web passing through the cold water bath afterleaving the wax tank II and squeeze rolls it. The.

machine of the modification, however. takes little floor space and has aheight of only six feet. More suction tubes are used, but the polishingY and chilling rolls are entirely eliminated. The -eillciency of themachine is increased by recirculating the cold water bath, the web beingfinally wound on the finished roll "at comparatively high speed.

0n the uprights and spaced from the outside of the rolls 4! and 4i, Iarrange a splashguard 58.

From the above description of my invention, it will be apparent to thoseskilled in the art that I provide a waxing machine which is very emmentsin embodiments which I have found very practical. I have not attemptedto illustrate or describe other embodiments or adaptations as it isbelieved this disclosure will enable those skilled in the art to embodyor adapt my improvements as may be. desired.

. Although I have shown and described certain specific embodiments of myinvention, I am fully aware .thatmany modifications thereof arepossible. My invention is therefore not to be restricted except in sofar as is necessitatedby the prior art and by the spirit of the'appendedclaims.

Having,thus described my invention, what I claim as new and desire tosecure by Letters Pattent is:

1. In a waxing machine, the combination with a stainless steel suctionpipe having a longitudinal slot intermediatethe ends thereof, and ahardened steel suction bar having a transversely rounded wearing faceand a base fitting.

within said slot, the bar being provided with suction perforations, of aseries of clamping bolts arranged through said pipe at substantiallyright angles to said slot for releasably clamping the base of said barin place, said bar being relatively deep between said base and said faceto provide for machining the face to correct curvature several timesduring the life thereof.

2. In a waxing machine, the combination with a suction pipe having alongitudinal slot intermediate the ends thereof, and a suction bar hav-=ing a transversely rounded wearing face and a base fitting within saidslot, the bar being provided with suction perforations, of a series ofclamping bolts arranged through said pipe for releasably clamping thebase of said bar in place between the sides of said slot, said bar beingrelatively deep between said base and said face to provide for machiningthe face to correct curvature several times during the life thereof.

3. In a waxing machine, the combination with a stainless steel suctionpipe having a longitudinal slot intermediate the ends thereof, and ahard ened steel suction bar having a rounded wearing face and-a basefitting within said slot, the bar being provided with perforations, ofmeans compressing said pipe for releasably clamping the base of said barin place between the sides of said slot, said bar being relatively deepbetween said base and said face to provide for machining the face tocorrect curvature several ing the life thereof.

4. In a waxing machine, the combination with a suction pipe having alongitudinal slot intermetimes durdiate the ends thereof, and a suctionbar having a rounded wearing face and a base fitting within saidslot,the bar being provided with perforations, of means compressing said pipefor clamping the base of said bar in placebetween the sides of saidslot.

5. In a waxing machine, thecombination of a suction pipe having alongitudinal slot inter- 6. In a waxing machine, the combination withspaced hollow uprights, and a suction pipe disposed therebetweem'theinner walls of the uprights having openings at the ends of the pipe, ofend plates adjustably mounted on the inner walls of the uprights andhaving inwardly projecting forked lugs, cylindrical end memberstelescoped within the ends of said pipe and having lateral bosses facingsaid lugs, and bolts journaled to said lugs and threaded to said endmembers in said bosses for adjusting the ends of said pipe transverselyof said uprights.

7. In a waxing machine, the combination with spaced hollow uprights, anda suction pipe disposed therebetween, the inner walls of the uprightshaving openings at the ends of the pipe, of end plates mounted on theinner walls of the uprights, cylindrical end members in telescopedrelation with the ends of said pipe, and means for adjusting said endmembers relative to said end plates.

ing plates, and adjusting screws rotatably engaging said slotted lugs onsaid mounting plates and having threaded engagement with said couplingmembers whereby the suction pipes are adjustably supported.

9. In a machineof the class described, the combination with spaceduprights constituting suction headers and provided with opposed suctionpipe seats on their sides, of suction pipes provided with perforatedfaces, coupling members telescoped with said suction pipes and slidablysupported in said seats, and adjusting means for said coupling members'in said seats whereby the suction pipes are adjustably supported.

10. In a device of the type described, the combination with suctionpipes provided with perforated faces, of spaced members constitutingsuction headers and provided with opposed suction pipe seats transverseof the pipes, means operatively associated with said pipes andcooperative with said seats to adjustably support the pipesthereagainst, and means for adjusting the pipes transversely, of saidseats.

11. In a device of the type described, the combination with suctionpipes provided with perforated faces, of spaced members constitutingsuction headers and provided with opposed suction pipe seats transverseof the pipes, means operatively associated with said pipes andcooperative with said seats to adjustably support the pipesthereagainst, and means for adjusting the pipes in said seats.

RALPH A. HAYWARD.

